File Upload and Compare using IEnumerable - c#

I am trying to upload a file using File Upload. Then compare this file with a repository using IEnumerable. I want the IEnumerable list to save the path of the uploaded file. I am trying to do so, but it's giving me an error :
Could not find file 'C:\Program Files\Common Files\Microsoft Shared\DevServer\10.0\Uploaded file.txt'
The code is as follows:
//File upload method uploads the file
protected string File_Upload()
{
string strFilename;
strFilename = File1.PostedFile.FileName;
strFilename = System.IO.Path.GetFileName(strFilename);
File1.PostedFile.SaveAs(#"E:\" + strFilename); /*saves the uploaded file in the specified directory */
return strFilename; /*returns the file name and it's path*/
}
protected void Button2_Click(object sender, EventArgs e)
{
String StrFileNmae =File_Upload(); /* Receives the file name and path*/
string file1 = StrFileNmae;
IEnumerable<string> list1 = File.ReadLines(file1);
IEnumerable<string> list2 = Directory.EnumerateFiles(#"E:\DocxDB", "*.txt", SearchOption.AllDirectories);
IList<string> difference = list2.Except(list1).ToList();
if (difference != null)
{
lbl_Result.Text = "Files do not match.";
}
}

Try this, the File_Upload method returns the file name but not the path it's in. Without a path the server will try and load it from the current directory.
protected string File_Upload()
{
string strFilename;
strFilename = File1.PostedFile.FileName;
strFilename = System.IO.Path.GetFileName(strFilename);
File1.PostedFile.SaveAs(#"E:\" + strFilename); /*saves the uploaded file in the specified directory */
return #"E:\" + strFilename; // <--- Change is here
}

Related

C# I am trying to move a file from one directory, where I wont know what the name of the file is, to a new directory

I have the below throwing an exception: System.ArgumentException: 'Empty file name is not legal.
Parameter name: sourceFileName'
public bool ArchiveFile()
{
int fileCount = Directory.GetFiles(#"\\company\Archive\IN\InvoiceTest\Inbox\").Length;
DirectoryInfo diFileCheck = new DirectoryInfo(#"\\company\Archive\IN\InvoiceTest\Inbox\");
foreach (var fi in diFileCheck.GetFiles())
{
string strSourceFile = Path.GetFileName(#"\\company\Archive\\IN\InvoiceTest\Inbox\");
string strDestination =Path.Combine(#"\\company\ArchiveIN\InvoiceTest\Archive\", strSourceFile);
File.Move(strSourceFile, strDestination);
}
if (fileCount==0)
{
string strMessage = "No file found in directory: \n\n";
MessageBox.Show(strMessage, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
else
{
return true;
}
}
Your problem is here:
foreach (var fi in diFileCheck.GetFiles())
{
string strSourceFile = Path.GetFileName(#"\\company\Archive\\IN\InvoiceTest\Inbox\");
string strDestination = Path.Combine(#"\\company\ArchiveIN\InvoiceTest\Archive\", strSourceFile);
File.Move(strSourceFile, strDestination);
}
Your fi is a FileInfo object, but you are not using it. Instead of using Path.GetFileName, use fi.Name.
See FileInfo
This reads all files from a source directory, and moves them to a target directory:
var filePaths = Directory.GetFiles("Source"); // get file paths from folder 'Source'
foreach (var filePath in filePaths)
{
var fileName = Path.GetFileName(filePath); // get only the name of the file
var targetPath = Path.Combine("Target", fileName); // create path to target directory 'Target' (including file name)
File.Move(filePath, targetPath); // move file from source path to target path
}

Renaming the Copy of a Picture

I'm trying to create an album and what I want to do, is to copy a picture from its original path to a specific folder and rename (the copy) right after.
Here is a piece of my code (note that "picturedir" is a path):
string PCname = Environment.UserName;
Image File;
OpenFileDialog openfile = new OpenFileDialog();
openfile.InitialDirectory = #"C:\Users\" + PCname + #"\Pictures";
if (openfile.ShowDialog() == DialogResult.OK)
{
try
{
File = Image.FromFile(openfile.FileName);
pictureBox3.Image = File;
pictureBox3.Image.Save(picturedir + "\\" + openfile.SafeFileName);
System.IO.File.Move(picturedir + "\\" + openfile.SafeFileName,
picturedir + "\\" + "1");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
As seen in the last line inside the "try", I want to rename the chosen picture, simply to "1". However, this last line gives an error "Cannot create a file when that file already exists". Any ideas?
P.S.: If I do not use the last "try" line: System.IO.File.Move(picturedir + "\\" + openfile.SafeFileName, picturedir + "\\" + "1"); it does copy the chosen picture but it obviously does not rename it at all.
Here is an article about work with files.
From article:
static void Main()
{
string fileName = "test.txt";
string sourcePath = #"C:\Users\Public\TestFolder";
string targetPath = #"C:\Users\Public\TestFolder\SubDir";
// Use Path class to manipulate file and directory paths.
string sourceFile = System.IO.Path.Combine(sourcePath, fileName);
string destFile = System.IO.Path.Combine(targetPath, fileName);
// To copy a folder's contents to a new location:
// Create a new target folder, if necessary.
if (!System.IO.Directory.Exists(targetPath))
{
System.IO.Directory.CreateDirectory(targetPath);
}
// To copy a file to another location and
// overwrite the destination file if it already exists.
System.IO.File.Copy(sourceFile, destFile, true);
}
If you use different file names, you get copy with new name.

Creating unique files in another directory

Currently i am taking in multiple .txt files from a directory i have specified (sourceDirectory). I am generating new .csv files with the same name as the .txt files - one .csv file for each .txt file.
However i want to generate these new files in another directory which i have specified (directoryPath). If i run my program once it creates these files in the initial directory, however if i run my program again it now generates the files in the destination directory.
The following is my code where i complete the above:
static void Main(string[] args)
{
string sourceDirectory = #"C:directoryWhereTXTFilesAre";
var txtFiles = Directory.EnumerateFiles(sourceDirectory, "*.txt", SearchOption.AllDirectories);
foreach (string currentFile in txtFiles)
{
readFile(currentFile);
}
string directoryPath = #"C:\destinationForCSVFiles";
}
I then create the new .csv files name based on the original .txt file like this:
static FileStream CreateFileWithUniqueName(string folder, string fileName, int maxAttempts = 1024)
{
var fileBase = Path.GetFileNameWithoutExtension(fileName);
var ext = Path.GetExtension(fileName);
// build hash set of filenames for performance
var files = new HashSet<string> (Directory.GetFiles(folder));
for (var index = 0; index < maxAttempts; index++)
{
// first try with the original filename, else try incrementally adding an index
var name = (index == 0)
? fileName
: String.Format("{0} ({1}){2}", fileBase, index, ext);
// check if exists
var fullPath = Path.Combine(folder, name);
string CSVfileName = Path.ChangeExtension(fullPath, ".csv");
if (files.Contains(CSVfileName))
continue;
// try to create the file
try
{
return new FileStream(CSVfileName, FileMode.CreateNew, FileAccess.Write);
}
catch (DirectoryNotFoundException) { throw; }
catch (DriveNotFoundException) { throw; }
catch (IOException)
{
}
}
I don't see why it's creating the .csv files initially in the same directory that the .txt files are in and then second time i run my code it creates them in the directoryPath.
Desired output: sourceDirectory left as it is with only .txt files and directoryPath to hold the .csv files.
The only other place i call CreateFileWithUniqueName is within my readFile method, the code is below:
using (var stream = CreateFileWithUniqueName(#"C:destinationFilePath", currentFile))
{
Console.WriteLine("Created \"" + stream.Name + "\"");
newFileName = stream.Name;
Globals.CleanedFileName = newFileName;
}
It seems that you are passing the full filename of the source file. This confuses the Path.Combine inside the CreateFileWithUniqueFilename because you are falling in this subtle remarks found on the documentation of Path.Combine
paths should be an array of the parts of the path to combine. If the
one of the subsequent paths is an absolute path, then the combine
operation resets starting with that absolute path, discarding all
previous combined paths.
You can fix it easily with
using (var stream = CreateFileWithUniqueName(#"C:\destinationFilePath",
Path.GetFileName(currentFile)))
{
Console.WriteLine("Created \"" + stream.Name + "\"");
newFileName = stream.Name;
Globals.CleanedFileName = newFileName;
}
Or better extract the filename without path inside the CreateFileWithUniqueName
static FileStream CreateFileWithUniqueName(string folder, string fileName, int maxAttempts = 1024)
{
var fileBase = Path.GetFileName(fileName);
fileBase = Path.GetFileNameWithoutExtension(fileBase);
var ext = Path.GetExtension(fileBase);
also, you should build your CSVfileName using the cleaned filename
var name = (index == 0)
? String.Format("{0}{1}", fileBase, ext);
: String.Format("{0} ({1}){2}", fileBase, index, ext);
var fullPath = Path.Combine(folder, name);
string CSVfileName = Path.ChangeExtension(fullPath, ".csv");
if (files.Contains(CSVfileName))
continue;

How to save .zip to a folder using ZipArchive?

I did the following, but i don't see the zip file in the directroy. C#
public static void AddToZip(string fileToAdd, string directory)
{
string entryName = fileToAdd.Replace(directory, string.Empty);
string archiveName = entryName.Replace(Path.GetExtension(entryName), ".zip");
using (ZipArchive za = ZipFile.Open(archiveName, ZipArchiveMode.Create))
{
za.CreateEntryFromFile(fileToAdd, entryName, CompressionLevel.Optimal);
}
}
and this is the link i followed.
http://msdn.microsoft.com/en-us/library/system.io.compression.ziparchive(v=vs.110).aspx
Finally got it working after some trial and error.
public static void AddToZip(string fileToAdd, string directory)
{
string entryName = fileToAdd.Replace(directory, string.Empty);//name of the file inside zip archive
string tempDir = Path.Combine(directory, Path.GetFileNameWithoutExtension(entryName));
if (Directory.Exists(tempDir)) DeleteDirector(tempDir);
else Directory.CreateDirectory(tempDir);
System.IO.File.Move(fileToAdd, Path.Combine(tempDir, entryName));//as the CreateFromDirectoy add all the file from the directory provided, we are moving our file to temp dir.
string archiveName = entryName.Replace(Path.GetExtension(entryName), ".zip"); //name of the zip file.
ZipFile.CreateFromDirectory(tempDir, Path.Combine(directory, archiveName));
DeleteDirector(tempDir);
}
private static void DeleteDirector(string deletedir)
{
foreach (string file in Directory.GetFiles(deletedir))
{
System.IO.File.Delete(file);
}
Directory.Delete(deletedir);
}
I know this is not the best solution. so, you are welcome to modify/improve it.

Upload File attached to FileUpload Control to FTP C#

I am trying to upload a file that is attached to a FileUpload control to a folder that is created in FTP. The Folder is getting created without issue but I can't seem to upload the file.
It seems as though my filepath to the source file is incorrect in the line String filePath = Server.MapPath("~" + #"\" + nameToGiveFolder); I have tried multiple variations of the file path but cannot seem to get the file uploaded.
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = FileUpload1.FileName;
string ftphost = WebConfigurationManager.AppSettings["myHost"].ToString();
string u = WebConfigurationManager.AppSettings["u"].ToString();
string p = WebConfigurationManager.AppSettings["p"].ToString();
string nameToGiveFolder = FileUpload1.FileName.ToString().Substring(0, FileUpload1.FileName.ToString().LastIndexOf("."));
string ftpfullpath = "ftp://" + ftphost + "/" + nameToGiveFolder;
FtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(ftpfullpath);
ftp.Method = WebRequestMethods.Ftp.MakeDirectory;
ftp.Credentials = new NetworkCredential(u, p);
FtpWebResponse CreateFolderResponse = (FtpWebResponse)ftp.GetResponse();
if (FileUpload1.HasFile)
{
try
{
Label1.Text = "Has File";
String filePath = Server.MapPath("~" + #"\" + nameToGiveFolder);
FileUpload1.SaveAs(filePath);
}
catch (Exception ex)
{
Label1.Text = ex.ToString();
}
}
else
{
Label1.Text = "No File";
}
}
Use Path.GetFileNameWithoutExtension(). to get the file name
FileUpload1.SaveAs(Server.MapPath(string.Format("~/{0}/{1}", Path.GetFileNameWithoutExtension(FileUpload1.FileName), FileUpload1.FileName)));
Note that you need to give the file name as well, if the file name is abc.jpg, above code try to create folder under your root of the web side called abc and save the file inside that folder with file name abc.jpg
i think your problem of line String filePath = Server.MapPath("~" + #"\" + nameToGiveFolder); is only having folder path at the end. when you call FileUpload1.SaveAs you need to have full file path.
Update
You get the error
System.IO.DirectoryNotFoundException: Could not find a part of the
path
because you don't have directory with the name of file name. I'm not where exactly you want to put the file. if you going to put the file in new directory, you need to create that directory first.
var folderpath = Server.MapPath(string.Format("~/{0}", Path.GetFileNameWithoutExtension(FileUpload1.FileName)));
System.IO.Directory.CreateDirectory(folderpath);
FileUpload1.SaveAs(Path.Combine(folderpath, FileUpload1.FileName));

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